Cubes are all the rage on the App Store at the moment, thanks mainly to 22Cans's teasing timesink Curiosity. Motley Blocks is a bit like Curiosity if it had a visible goal rather than a promised one, and more of a game layered on top of its intrigue.

The end result is an entertaining and occasionally tough as old boots colour-matching game with a few tricks up its uniquely styled sleeve. There's certainly fun here, but there's a good chunk of frustration too.